dennis



' A. S. DENNIS.

CALCULATING MACHINE' APPLlcATloN mw JUNE 9, ma.

3 SHEETS-SHEET i.

,9 i@ l@ @u e@ @u @n Q/9 4L' IN VENTOR ummm? A. S. DENNIS. CALCULATING MACHINE. APPLICATION FILED JUNE 9. 1919.

Patented July 5, 1921.

3 SHEETS-SHEET 2 Adaa/zz/J 5. 1202 n 7L:

IN VEN TOR A. S. DENNIS.

CALCULATING MACHINE. APPLicATIoN FILED lunas. w19- 1,883,607. Patented July 5.,1921.

. 3 SHEETS-SHEET 3.

A TTORNEY 1N VENTOR UNITED STATES ADULTI-IUS S. DENNIS, OF OAKLANJ, CALIFURNIA.

CAEJCULATIN GMA.CHINE.

Application led .Tune 9,

To all whom t may coi/wcm.:

Be it known that l, ADoLrHUs S; DENNIS, a citizen ot the United States, residing at the city of Oakland, in the county ot Alameda plicand or the dividend and divisor.

and State of California, have invented certain new and useful Improvements in Calculating-lVIachines, of which `the following is a specification.

This invention relates to improvements in calculating machines of the type wherein the movement of the operating keys cause a corresponding movement of the indicating wheels and wherein the effective movement of the key is roportional to the value of the di it which-t iat key represents.

iy invention is in the nature of an addi tien to machines of this vtype and may be used in combination with standard machines or embodied in a separate machine. It mayv be used with existing machines Without interfering with their ordinary operation whereby they may be used in the conventional way for problems involving small vnumbers, while the mechanism comprising my invention may be used wherethe computations involve numbers having a large number ot digits in the multiplier and multi- "While I have shown my invention as being applied to a type of standard machine, it will of course be apparent that the invention may be embodied within a machine itself with .corresponding results.

The principal object of my present invention i's to provide a machine for performing multiplication or division which not, only will indicate at the end of each operation the product or quotient but will also indicate the multiplier or divisor.

The further object of my invention is to provide relatively simple mechanism by which this invention may be caused to operate in connection with calculating machinesl Specification of Letters Patent.

191e. serial ivo. eoaeea.

specicaliy .pointed out in the appended claims, it being understood that changesin form and details of construction, Within' the scope of 'these claims,v may be. made without departing from the spirit of the invention, sacriiicing any of ther advantages thereof.

Reference being had tothe accompanying drawings, forming a part of this specification,

Figure l is a view in plan showing the application of my improved invention to a'- standard calculating machine. i

Fig. 2 is a view in side elevation of the same.

3 a vertical section through the mechanism comprising my invention show ing its application to the rear end of a calculating machine.,

Fig. 4 is a view in section on the line 4-4 Fic. i.

Fig. 5 is a view in rear elevation.

'Fig'. 't3 is a view in plan with the covei` plates removed showing the mechanism comprising my invention.

Fi f. 'i' is an enlarged sectional view on the line -T Fig. 6.

lig.' 8 is a detail view of the unit operating cam.

Fig. 9 is a view in section on the line 9 -9' Fig. 5.

Referring to corresponding parte in the several views by the same numerals' of reerence, il. denotes a calculatingv machine of the type in which the depression of the number keys 2 causes the operation of the indicating mechanism to an amount corresponding to the value of'the key depressed.v For use in connection with my invention the keys for the digits 9 must be made without a key lock so that several of these keys or any one of them can be partly depressed to operate the indicating mechanism a corresponding amount and they will then return to their normal position. Y

This calculating machine is removably pbsitioned on a iiat base 6 on which is also mounted the mechanism comprising my invention.. As here shown the method of locating the calculating machine consists-of providing the base with openings 7 which have the same diameter as the rubber pads 5 on the feet 4. The pads being smallerthan the feet, there is thus provided a shoulder .Patented July 5, 1192.1.

which rests on thesurface of the base to sup-` 12. The latter is turned by means of the between the equal to the distance between the leve crank 10 which is irovided on its outer end Withran operating handle 1l. In connection with this handle l provide means for 'holding the crank in a predetermined posiT tion consisting of a tubular sleeve i3 en tending outwardly and on which the handle is axially movable. posed between a iiange on the outer end of .the sleeve and an interior shoulder on' the handle and tends to move the handle towardl the crank. A pin 15 extends through. the sleeve and is attached to the handle and movabletherewith. On the outside of the plate 8 is a conical faced lug 16 havingY an opening in which the end of the pin is adapted to seat. y

Between the end plates Sand 9 is .a vertically movable frame 19 coinposed of end plates 20 which are positioned just insideofthe end plates 8 and 9 and are connectedv l'across their uppr endsbjiiineans of the bars 21. These lates .are substantially T-shaped, and have t e ends of the p ates have vertice-l slots 23 that embrace grooved collars on shaft 12 and-.so guide the upper ends of the pistes.`v Pivotallymounted inside of the end plates are toothed gears 24 which are driven by gears 25 that are keyed to shaft L21.' Gears 24 and 25 have corresponding 'pitch diameters Iso thatfor each revolution o shaft l2 the gear- 24 also makesy one revoiiition. To each of;

the gears 23 on one side of the center as shown ,at 26 is pivotally connected one end of a link 27 the other end cf which'is pivot ally connected to the end brackets 2.0 as shown at 28. These links thiis .form een necting rods whichl canse the entire'franie .19` to 'move in a vertical direction whenthe shaft l2 is rotate@ Slidahly mounted ohlthe rods is a.. oarriagedenoted generally by 30 which conm sists ofend' plates 31 connected hy the tn,- bular members 32 which are open on the bottom and form guideways which embrace the rods 2l. Entendingr between 'the end plates is a shaft 34 on which is oscillatively mounted the setting mechanism for-the operation of the computing machinelreys. g This set-v ting mechanism consists of units each oi? `which is substantially/similar'in construction and which are spaced apart a distance of the computing machine. Each unit comprises two spaced cam members denoted hy d0 and 41 the cam 4.0 being used for operaticns in.

A spring 'lli is inter-l -lower ends of the stems guided rooved rollers' 22. The upper' volving addition and cam d1 tor operations involving subtraction. Between these members is a segmental disk 42 on the outer 'edge of which is provided the indicating numerals d3 and alongside ot cani member i0 is anoperating lever 44 and adjacent the latter is a segmental disk d5 having notches i6 on its outer edge which notches are an angular distance apart corresponding to that of the numerals da., The various'nnmbers just described are assembled andlheld inlined relation by a rivet or pin 4"( extending through the asseinhiy.

Extending between the end plates 31 is a segmental cover 48, which is provided With slots 49 for the levers 44 and also openings 5G' through which the numerals 43 lmay be viewed. .Above the holding segment 42, on a bar 52 extending between the end plates 30, are holdin devices for the setting mechanism, Whici devices consist of sleeves 53 attached to the` underl side of the -bar and 'spring extended pawls 5l which engage the notches 4:6. j

Each of the calculating machine4 keys in the rear row is provided with a rearwardly extending arm 60 which is adapted to be engaged by the mechanism forming my invention; As here shown, these arms consist of latstrips having an opening for the pin on the upper end ofthe'key stems 55. Each strip is held by the key-button 56 fon the shoulderlformed between this pin and the stem. An upwardext'ension 57 is provided which fits closely the `curved side surface of the key-hutton and acts vas a brace for the arm.

The members which engage arms 60 are denoted by 61 and one of these members is` spaced under each of the setting units. Ex-l 3 tendine; downwardly from each member 61 .are ro s 63 and which enter correspondle har 65. 'The rod 64 ingl openings in a gni is 'continued downwardly throu h, openings ina parallel guide liar 56. Underneath the gni .e bei" 55 each of the rods is provided with' cellar TG. which serves to'limit the upward movement et reds and also serves an abutment .ter theiig'ht coiled spring .i '.ch snrionnds the rod .and has its op-f pome abuttingagainstgnide bar G6. liars-65 and titi attache/.l to brackets 67 T. att1 ned to the hase 6.

r bar en frame 19 and ein end platesZO is a sup, hed the notched inonnted on' shaft n Tillich comprises a attends an erin 75 in a 'lcrward directien and which projects vthrcngh the cevei. piate 48. Extending 'rearwardly freni the sleeve are arms 76 which ccnnected `by a longitudinal bar 78 on the et 'nich is a roller or other 'device 1 ,esaeov 80 for engaging the notches 79. in member biliurcated Aand enga `es an annular collar" 89 on the sleevej74. he lever itself is piv otally mounted intermediate its length on a bracket 85 extending outwardly from the end plate 31. The sleeve itself held in a fixed position by the engagement of the roller 80 in the notches of bar 72 so that the` shitting of the lever willicorrespondingly shift the whole frame on the guides 21. To hold the carriage in either position, I provide the shaft 34 with grooves 89 which are spaced apart the distance which the carriage is shifted. Extending through the collar 89 is an opening in the bottom of which is a springdepressed ball 82.' This ball drops into one or 'the other olf the grooves 88 and so holds the carriage in either operating po sition.

To provide means for visually indicating" the multiplier or quotient, I provide a counting mechanism which consists oi" .shafts 90 and 91 mounted in the end plates 8 and 9. On shaft 90 are star wheels 96 and revoluble therewith toothed gear wheels 94. The various pair of 'star and gear wheels are spaced apart on shalt 90 a distance equal to the spacing of the notches 79, which in turn are spaced the same as the members 61. @ii-shaft 91 are toothed gears 95 which mesh with the gears 94. ltevoluble with each of the lgears 95 are two indicating disks 93 and 92 and a star wheel. 97. The latter is spaced axially with respect to the star wheel 96 an amount equal to the'distance which the carriage is shifted by lever 86.

Revolubly mound in the end plates 8 and 9is a shaft 98 lwhich is driven by 25 through the toothed idler gear 103 and the gear 102 on shaft 98. The shaftis -pro vided with a keyway 112 and splined thereto is a sleeve 101 which has a linger 99 that is adapted to engage the star wheels 96 and 97. This sleeve is movable with the trame 30 by being held between the bifurcated end of a member 100 extending therefrom.

rEhe gearand upper portion of the mechanism is provided .vith' cover plate 105 which is curved to lit )closely over the disks 92 and 93. Above the latter? the plate is provided with openings 106 the width ot' the two disks. These disks are numbered irom 0 to 9, in opposite' directions one set of gear i figures being used for division and the other set for multiplication. In order that the wrong set may not be read, l provide a slidable strip 108 which is mounted on brackets 107 on the inside of the end plates 8 and 9.' The upper edge of this strip has `notches 109 which are substantially half the width of the openings 106 and uncover one half at a time. This strip is shifted by a knob 110 which projects through a slot in the plate 105.

As the carriage 30 is moved toward the' lefton the guide bars 21,; the left handed end will be extended outside oithe frame and I provide the end plate 9 with an opening'll for this purpose.

As the end frame 19 moves vertically while the shaft 98 is fixed on the end Vplates 8 and 9 it is necessary to provide means in connection with the member 1 00 to take f care ol this movement. As shown in Fig. 9 the lower end of the member is provided with slots 120 and extending through' the end plate 31 are guides 121 which have enlarged heads and thus hold the member in vertical alinement while allowing a relative movement between the parts.

In this machine division or continuousy subtraction is performed by adding the codigits of the numbers, which makes it necessary in. the unit position to add the codigit plus l, or the complement of thenumber. For this reason the division cam oi the lirst unit, which I have denoted by 41'l is constructed as shown in Fig. 8. The dotted line shows the configuration of cams 41 and the cam 41 for any position is one'space greater.

Thus when the arm 44 associated with this I unit is turned to 4,9 the position of cam 41 will be the sameas the 5 position of the cams 41. e

ln use the calculating machine 1 placed on the base 6 and accurately positionedby the means herein described or equivalent instrumentalities'.v Each key of the rear row is yprovided with an arm 60 as previously' den scribed and the mechanism of my invention is arranged that when the machine 1 is thus positioned the forward ends of members 61 will rest on these arms. The machine is then ready to operate.

Il multiplicationv is to be performed the lic lever 8G and knob 110 are moved to indicate this operation andthe arms 44 pulled down through vslots 49 until the multiplier is 'read through the openings 51.` Asa concrete illustration suppose the product of b 346 is required. The carriage 31 is preferably positioned so that the first' slot 49 from the right is in alinementwith the first row of keys 2. Then the first lever 44 from the 'right is pulled down until the number 6 is visible through the associated opening 5, the second lever 44 ismoved to indicate 4 and the third lever to indicate 3. Y The movement of each of these levers rotates the cams associated with that unit, and the cams [i are i positioned directly over the corresponding contact strips 61.

Next the handle .il is pulled out to release the operating crank and the latter rotated tive times, corresponding to the 5 in the units place of the multiplioand. Each time the crank is rotated the frame 19 is moved downwardly by the connecting links 27 and. the cams 40 push down the members 61. The latter in turn press down the associated calculating machine keysfl. The curvature of these cams is such'that .fora given setting they move the corresponding members 61 in the ratio of which that setting is to 9. In our exampleI the cam of the .hrst unit will move the key 2 associated therewith 6/9 the' total distance which this key is movable, the

' second and third cams will move their assoofthe previous osition.

fio

eiated'keys 4/9 and 3/9 of the total distance which they are movable. Y

As previously. explainedjthe calculating machine is .'so constructed that when a key is only partly moved down' a.- corresponding movement of theindicating dials viewable throughthe openings 3 takes place. Hence intent: example on the first revolution of the crank the number 34d will. appear in these openings which number will be increased by itself on each subsequent revolution of the crank. l

The rotation'of shaft 12 by crank 10 rotates the shaft 98 at a corresponding speed and the finger 99 engages the star wheel 96 and moves it 1/10 of a revolution. This movement is transmitted to the associated 'devices on shaft 91 causing the disk 92 to be moved to indicate l through the lirst opening 106. F or each rotation of the crank the disk is advanced 1/10 of a revolution so that when the crank has been turned five times the dial will indicate 5 Next the lever is depressed to release A'the roller 80 and the carriage 30 moved one position to the leit.` in making this movementthesleeve 101 is carried along and positionedunder the next star wheel. 96. 'The crank 10 isthen turned two times which causes the setY cams .to Contact with the member 6]. oforders ten times .thel value of those ir lil/:e manner the finger 99 wil move the 'second' disk 92 so that the numeral 2 is readable. l

IThe carriage is then shifted another space to the left andthe handle turned once, and restored to itsnormal position. At the end of this process the number 125 is visible through openings 106.V The multiplier 346 shows through the openings 50 and, the product is read in the Vopeniizgs 3.

In performingL division which continuous subtraction the dividend is set up 1n the openings 3 and the divisor in the open-.-

ings 50. The carriage is then moved to the left until the number set up in openings 50 will be subtractable for the number in the alining openings 3 one or more times.

Arm 86 .is moved to the right which shifts the Whole carriage suiiicient to bring the cams 41 over the member 61 and in like manner the finger 99 opposite one ofthe star wheels 97.

Assuming that the divisor is 346 then as before the lirst three setting levers 44 are moved until 'this member appears in the openings 50. But cams 41 are arranged that when the carriage is moved vertically, the amount of movement which they impress on the correspondingl members 61 will be the codigits of these numbers or for the first and second cams for the left the amount of movement will correspond to 6 and 5 respectively. On the extremelright cam or 41 the movement impressed will be the codigit plus 1 or @4. f

In performing subtraction by addition of the codigit it is well known that it is necessary to add one in the unit psition and to throw away 1 from the last position on the left. These operations are automatically performed on Vmy machine the first by the use ofthe special cam41 and the second due to the fact that a row of 9s are added to the 1, which clears the indications visible throughopenings to the left hand side. As the machine thus accurately performs subtraction it will perform division, the process being to rotate the crank 10, as many* times as necessary yto clear the number in the alining openings 3 and then to move the carriage to the right and repeat the process.

Each time the crank `is rotated the disk 93 will be moved by finger 99, contacting with star wheel 97 and when the carriage is shifted the indication will take place in the corresponding opening 106 to the right. Thus when the number set up in openings 3 is entirely cleared the number appearing on disks 93 will bewthe quotient. To view this number it is necessary to first shift the strip 108 to open the other side oi openings 106.

The indications in openings 106 are cleared by rotating' a wheel 116 and those in openings 3 by the lever 125.

.In case division is being performed and the divisor is subtracted too often .causing a row'oi 9s to appear at the extreme left of openings 3, the mistake is rectified by moving lever 86 to the position. :tor multiplication giving the crank one turn and shifting the lever 86 back to the 'division position.

`With this attachment numbers may be 4handled on a calculating machine of this character' which cannot be spanned by the fingers of the ordinary operator.- Also an absolute check is secure as all three terms of the operation are visible. The device in no Way interferes with the ordinary opera tion of the calculating machine, for the keys may bedepressed as it' the attachment was Anot in position.

Having thus described my invention,v i claim as new and Wish to cover by' Letters Patent l. Af device of the character described comprising the combination with the actuating parts of a calculating machine, of members for moving said parts, cams adapted to be set according to the numeral being used, means for reciprocating said cams to cause them to move said members an amount pro' portional to the 'cam settings.

2. A device of the character' described comprising in combination With a calculatm ing machine of the key operated type, members for depressing the l'nine keys of said machine, pivotally mounted cams adapted to set according to the number to be'placed in said machine, means for reciprocating said cams to cause them to contact with said members, and means for counting the reciprocations of said cams.

3. A device of' the character described comprising in combination With a calculating machine of the key operated type, mcmbersl adapted to depress the nine keys of said machine, cams oscillatively mounted for the purpose of setting the same, curved surfaces on said cams for-contactvvith said members 4`'setting cams adapted to contacty with said members, means for reciprocably movingsaid cams and causingvthem to move said'-' members an amount ting of said cams.

5. A device of the character described comprising in .combination with a calculat ing machine of the key operated type, reciprocable members adaptedto depress t/he nine keys of said machine, a pair ot oscillatively mounted setting cams for each of said members, meansifor bringing either cam of said pairs into position to contact with said, members, means for reciprocating said cams to cause them to move said members Ian amount proportional to the se Ating of the contacting cams.`

6. A device ofthe character iescribed comprising in combination with a alcuiating machine of the key operatedtype, re ciprocable members adapted to depress the nine keys "of said' machine, a lpair of oscilproportional to the setlatively mounted connected setting cams ior each of said members, adapted to contact therewith, one ot said cams having contact` points the radii which are as the digits for which the cam is set, the other of said cams having contact. points the radii of which are as the codigits of the numbers for which the cam is set, means for bringing either cam of said pairs into a position to contact with. the corresponding member, and means Ytor reciprocating said cams to cause them tol move said members an `amount proportional to the setting of the contacting cams. 7.1i device of the character described comprising in combination with a calculating machine of the key operated type,lrecip rocable members adapted to depress the nine keys of said machine, setting devices and means for causing said setting devices to depress said members an amount proportional to the settings thereof.

8. A device of the character described comprising in combination Awith a calculating machine of the key operated type, re ciprocable members adapted to depress'the nine keys of said machine, setting devices, means for causing said setting devices to simultaneous y depress said members an amount proportional to the settings thereof and means for counting the depression of said members. i

9. A device of the characten, described comprising in combination with a key operated calculating machine, setting devices, means operable by said devices for depressing the nine keys of said machine an amount proportional to the setting of said devices, and means for counting the depressions of said keys. i

10. A device of 'the` character described comprising in combination with a key operated calculating machine having a plurality of depressibie keys, members for moving the nine keys thereof, setting devices, means for reciprocating said setting devices a uniform amount in the direction of movement of said key moving members, and means carried by said setting devices for contacting with said key 'moving member' and moving the saine an amount propor- 115 tional. to the setting of said devices.

Ill. A device of the character described t comprising in combination with a calcu1ating. machine having a plurality of depressibleoperating keys, members adapted to 120 contact .with the nine keys tor the purpose of depressingthe same, setting devices movable `traversely of said members, means for uniformly reciprocating said setting 'de'- vices, contact means on each ofsaid devices i adapted to be set in proportion to the digit ,ofthe number set. up, a second contact means., Kon each setting device adapted to be set ac`J ,-cording to the codigit of the same number and means whereby either contact .means of each devicemay be positioned to engage one of the key depressing members to 'move the same proportionally tothe indication of said setting devices. ,f

12. it device of the character described comprising in combination with key operated calculating machine having a plurality of depressible operating lreys, members adapted to contact With the nine lireys *for the purpose. of depressingl the same, setting devices movable transversely of said.mom bers, means for uniformly reciprocating said setting devices, contact means on each of said devices adapted to be set in proportion to the digit of the number set up, 'a second Contact means on each setting device adapted to be set according to -the codigit of the same number, means whereby either contact means of each device may be positioned to engage one of: the key depressing members to move the ysame proportionally-tc the indication or' said setting devices andindicating devices for counting the reciprocation of said setting devices. n

'13. A dcvicerof the character described comprising in combination with a ca1culating machine havingva plurality of depressible operating keys, members adapted to contact with the nine keys for the purpose 'ci depressing the same, setting devices movable transversely of :said members, means for holding said devices in'tiXed transverse relation to said members, means for uniformly reciprocating said 'setting devices, contact means on eachoi said devices adapted to be set in proportionto the digit of the number set up, a second contact means on each setting device adapted to be set according to thel codigit ofthe same number, means whereby either Contact means'oteach device may be positioned to engage one of the key depressing members tomove' the samev proportionally to the indication `ci said setting devices, and indicating devices for counting the reciprocations of said setting devices.

` le. A. 'device 'of the character described y comprising in combination with a key driven calculating machine having a plurality o i depressibie' nine keys, Vmembe-rs contacting with said keys for depressing the same, a traversely movable carriage above said members', setting devices mounted 'in said. carriage, means for holding saidsetting devices in a selected transverse position, means for reciprocating said carriage in the direction of said members, means carried said. setting devices for Contact with said memu bers, said means being adapted to depress said members when said carriage is reciprocated, an amount proportional 'to the' indications of the said setting devices.

15. A device of the character described comprisingq in combination with a key driven calculating machine having a plurality of depressiblef-'nine keys, members contacting incase? with said keys for depressing the samen-ri traversely movable carriage abo e sald members, setting devices mounted ,1n said l l P n carriage, means for reciprocating said carriage .in the direction of said members, two cams carried by each of said setting members for depressing said members an amount proportional to the setting thereof and means for shifting said carriage to bring either set orn said cams into position for contacting with said members.

16. A device of thecharacter described comprising in combination Witha key driven calculating machine having a'plurality of depressible nine lreys, members contacting with said keys t'or depressing the same, a traversely movable carriage abovel said members, 'setting devices mounted ,in said carriage, means for reciprocating said carriage in the direction of said members, means carriedv by said setting devices for contactvvith said members, said means being adapted to depress said members when said carriage is reciprocated an amount proportional to the indications of the said setting devices. i

17.1K device of the character described comprising in combination with a key driven calculating machine having a plurality of depressible nine keys, members contacting with said heysvfor depressing the saine, a traversely movable carriage above said members, setting devices mounted in said carmage, means for holding said setting devices in a selectedtraverse position, means -or reciprocating said carriage in the direction of said members, two cams carried by each of said setting members for depressing said members an amount proportional to the setting thereof and means for shifting said carriage to. bring either set of said cams into position oncontactinpl with said members. l

18. A. device of the character described comprising in combination with a key driven ,calculating machine having'A a plurality of depressibie nine keys, members contacting' with saidlreys for depressing the same, a traversely movable' carriage above said'members, setting devices mounted in said car-4 riage, means for holding said setting devices in a selected traverse positionl` means fior reciprocating said carriage in the direction of said members, tvvc cams carried by each of said setting members, means for shifting said carriageto brinp,r either set of cams into position for contacting with said members, contact points on one ovfsaid cams, r Winch are adapted to depress the correy spending key operating member 1n accordance With the digit set' up, contact points on the'other of said cams adapted to depress said key operating members in accordance with the codigit of the number set up.

19. A device of the character described lincase? comprising in combination Witha key driven calculating machine having a plurality of depressible nine lteys, members engaging said keys for the purpose of depressing the saine, a vertically movable :traine having traversely disposed guides, a carriage slid. ably mounted on said guides, means for reciprocating said frame, means' t'or holding said carriage in a selected traverse position, setting devices oscillatively mounted in said carriage, two cam members carried by each. of said setting devices,'means for bringing either or" said cams into position to Contact with said key depressing members and contact surfaces on said cams, one of which is adapted to mo've said lrey depressing members an amount corresponding with the digit set up, the other of which is adapted to depress said key depressing members an amountr corresponding with the codigit ot' the number set up, and means 4for counting the reciprocations of said frame,

20. In a calculating machine, the combination with the actuating parts thereof of digital. and codigital cams arranged in pairs, members adapted to move said actuating parte, means for bringing either cam of each pair` into operative relation with said members means `i'or moving said cams to operate the actuating parts ot' the calculating machine according to the number being used.

2l, In a calculating machine, the combination with the actuating parts thereof otv digital and codigital cams arranged in pairs and adapted to be set according to the num ber being used, means for reciprocating said cams, and means operable by the reciproca-` tion of said cams for moving said actuating parte,

` 22. In a calculating machine, the cornbination with the actuating parts oi the machine of pairs ot digital and codigital cams, setting devices therefor, and means for operatively `connecting either set of cams with the actuating parts of `the calculating ma.

chine. i

23. In a calculating machine, the combination with the actuating parte ci' the fnachine .of members adapted to be brought into operative relation to said parts, a carriage movable transversely in relation to said parte, pairs of digital and codigita earns carried by said carriage, means for moving said cams to bring either set into operative reiation with said members, and means for moving the caros into engagement with said members to canse the latter to operate said actuating parts.l

24. In a calculating machine, the conbination with actuating parts for the ina- 'chine movable.proportionately to the nuniber being used, of" pairs of digital and codigitai cams for moving said parts, a laterally shii'table carriage carrying said cams, means for laterally shifting said cams so as to bring either the digital or codigital camy of the pairs into operative relation with said actuating parts, and means 'for shifting said carriage to bring the corresponding canas of the pairs into operative relation with a selected group ot' .said actuating parte.

25. n aoalculeting machine, the com bination with actuating means for the inachine of members for moving said actuating means, a carriage iaterally movable with respect to said members, pairs oi digital and codigital `carne carried by said carriage, means for bringing either set of cams into operative relation with said members, setting levers for said cams, indicating devices for showing the setting of the canas, a spring holding pavvl for each set of cams, means whereby said carriage may be laterally shifted to bring the selected set of cams into successive operative relation with said ineinbers and means ior reciprocating the carriage to cause said cams to contact 'with said members 26 in a calculating machine, the coinbination with the actuating parts thereof,

yof members unconnected with'said parte for moving the same, a laterally movabie carriage, plurality of pairs ot connected digital and codigital cams, means for eelectively positioning either set ot canas in operative relation to said members, setting devices :for each set oi cams, a holding pavvl for each set of cams, means permitting the shifting of the carriage to bring a given set ot cams into operative reiation' with any 'group of said members, means 4for reciproeating said carriage to cause the selected set of cams to move said members proportionately to the cam settings, a plnrality'of pairs of indicating disks, a nger for operating said disks, said ii'iger being shittable with said carriage to actuatecsuccessive pairs of .disks and shiftable With the earns to actuate the disk of any pair corresponding to the digital lor codigita] `canes selected.

27. ln a calculating machine, the combination With'actuating mechanismstherefor, of number setting devices, caros carried by saiddevices' for movingl said actuating mecha-- nisins, and means for laterally shitting said devices tobrinpV the earns into operative re lation witlfsnccessive orders ot said actuat ing mechanisms. r

2P. ln calculating machine, the .combination with actuating; mechanisms therefor, oi number setting devices, cams carried by said devices for moving` said actuating' mechanisms, means for iateraily shitting said devices to bring the cams into operative rela' tion with successive orders ci said actuating mechanisms, means tor successively moving said earns to operate the actuating mechaorder position.

29. In a calculating machine, the combination with. actuating mechanisms therefor, of 'number setting devices, digital and codigital cams carried by said devices for moving said actuating' mechanisms, means for moving said cams to bring either set into operative relation with said actuating mechanisms, means for lateraly shifting said devices to bring the. selected set of cams into .operative relation with successive orders of said actuating mechanisms, means for successively moving said cams to operate the actuating mechanisms and means for indicating the number of operating movements of the cams for each order position.

30. In a calculating machine, the combination With actuating mechanisms therefor, of number setting devices, digital and codigital cams carried by said devices for moving said actuating "mechanisms, means for moving', said cams to bring either set into operative relation with said actuating mechanisms, means for laterally shifting said devices to bring the selected set ofcams into operative relation with successive orders of said actuating mechanisms, means for reciproeating said cams to cause them to move said actuatin mechanisms, and means for separately indicating the operative movements of the actuating mechanism for either set of cams.

31. In acalculating machine, the combination with actuating mechanisms therefor, of number setting devices, digital and'codigital cams carried by said devices for moving said actuating mechanisms, qmeans for moving said cams to bring either/set into operative relation with said actuating mechanisms, means for laterally shifting said devices to bring the selected set of cams into operative relation with successiveorders of said actuating mechanisms, means' for reciprocating -said cams to canse them to move said actuating mechanisms, counting mechanism 'for indicating the operative movements of said, digital cams for each order, other counting mechanism for the codigital cams, a finger for operating said ,counting mechanisms said finger beingshiftable from order-to order/ with the cams and movable as the digital or codigital are used to engage the corresponding set of counting mechanisms.

B2. A device of the character described comprising in combination with a. calculating machine of the key operated. type, reciprocable members adapted to depress the nine lieysrof Said machine, a pair of oscillatively mounted connected setting cams for each of said members, adapted to contact therewith, one of said cams havin contact pointsthe radii of which are as the igits' for which the cam is set, the other of said cams having contact points the radii of which are as the codigits of the numbers for which the cam is set, means for bringing either set of .cams into a position to contact with the said members, means for reciprocating said cams to cause them to move said members an amount proportional to the setting of the contacting cams, means for laterally shifting said cams for engagement with different orders of said members and means for counting the reciprocation of said cams'for each order position.

38. A device of the character described comprising in combination with a calculating machine having a plurality of depressible operating keys members adapted to contact With the nine keys for the purpose of depressing thesame, setting devices movable vtransversely of said members, means for holding said devices in fixed transverse relation to said members, means for uniformly reciprocatingy said setting devices, contact means on each of said devices adapted to be vset in proportion to the digit o'f the :numbers set up, a second contact means on each setting device adapted to be set according to the codigit of the same number, means whereby either contact means of each device may be positioned to engage one of the key depressing members to move the same proportionately to the indication of said setting devices and 'means for separately indicating theA number of reciprocations of Said setting devices when either set of contact means is iii operative position. l

34. A calculating machine comprising. the combination with actuating members therefor, of a laterally shiitable carriage, pairs of digita-l and codigital cams oscillatively mounted in said carriage, setting devices for saidcams, means for laterally shifting the carriage to position the digital or codigital cams in operative relation with the actuating members, means wherebysaid carriage may be moved to position the cams in operative vrelation with diii'erentorders of actuating fmechanism, means for moving said carriage to cause theset cams to engage the actuating members, a counting mechanism for each orlder position of the carriage, a iinger forengaging said counting mechanisms and later- 'allyrmovable `with said carriage, indicat- .ing means for the counting mechanisms viewable When the digital cams are used, and separate indicating means viewable when said codigital cams are used.

In testimony whereof l allix my signature.

ADOLPHUS S. DENNIS. 

